Demountable rim



Aug. 4, 1931. D.B. GENTRY VDEMOUNTMBLE RIM Filed Jure 5, 1930 I N VEN TOR.

Patented Aug. 4, 1931 Umren i s'rATES noUGLAs B. GEn'rnY, or oRozEr, VIRGINIA nEMoUN'rABLE RIM VAppnafion filea June 5, 1980. serial N0.4`59,`278.

This invention relates to. a demountable;

sectional rim for use inconnection 'with' disc and'wire Wheels, and has for 1ts obJect to provide, 1n a inanner as hereinafter set forth, a

l rim of the'class referred to capable of having the' sections `thereof p quickly disconnected from Veach other to permit of theexpeditious reinoval and replacing` of a' tire when occasionso requires. i i

A; further object of the invention is to provide, in a manner as hereinaftersetforth, a demountable, sectional rim capable ofrbe- `ing quickly secured upon the felloe of a wheel for coupling a tire in position.v

Further objects of the invention are to provide, in a mannerV as hereinafter, set forth, a demountable, sectional rim which is simple in its construction and arrangement, strong, durable, compact, thoroughly elficient in its 29 use, conveniently'adjusted to enable the expeditious positioning or removing a tirev upon or from a wheel felloe, readily assembled, and comparatively inexpensive to manufacture. i

Withthe iforegoing and other :objects in View the invention consists of the novel con-sl struction, combination Vand arrangement of scribed, and illustrated in the accompanying W drawings whereinis shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claim hereunto appended. i

In the drawings wherein like reference characters denote 'corresponding parts throughout the several views 2- Fignre 1 is a side elevation of a wheel pro- Vided with a pneumatic tire and showing the .4G adaptation with the tire and wheel of a` demountable, sectional rim in accordance,

' with this invention.

Figure 2 is a cross section of a wheel illustrating the arrangement of av demountable sectional rim in accordance with this invention with respect to'the felloe of the wheel.

. Figure 3 is a fragmentary view in perspec-v tive of the removable rim section.

face of the felloe 3.

notes the hub, 2 the spokes, 3the felloe'and 4 the tire of a wheel. Interposed betweenthe felloe 3 and the tire 4 is a rim 5 in accordance With this invention. i 'i `The rim 5 includes a pair of circular like parts of channel shape in transverse cross section and refe-rred to generallyat 6,7. The

parts 6, are spaced from eachother and vthe open ends of the Channels provided by said parts oppose each other. The parts 6, 7 have their radially inwardly'faci'ng surfaces seated on the radially outwardly faoing sur- A demountable, slectional rim, in accordance with this invention as shown in Figures 1, 2 and 3 is of the flanged type. The part 6 includes an outer side portion 10, a front portion 11 and a rear portion 12. VThe portions 11,` 12 are conc'entrically arranged relative f The portion 10 is the base, the portion 11 the front or outer wall and-the lportion 12 the rear or inner wall of the channel 13. ForIned integral with the base of the channel 13 is a flange 9. e i i VExtending into the channel 13 af side porsection is less than the. length of annulus 14 in transverse cross section.

17, a'front portion 18 and a'rear portion 19. `The portions 18, 19` are concentrically arranged relative toand spaced from each other and' areintegral with the portion 17.I In

transverse'crossjsectionrthe parts .18, 19 extendinwardly at right angles tov the portion 17. The portions 17, 18 and 19 are arranged i tojforrn a channel 20. The portion 17 isthe baseythe portion 18 the frontl or outerv wall and the portion 19 the rear or inner wallof channel 20. Formed integral with the base of the channel 20 is a flange 16.

Extending into the channel 20 is the outer side part of annulus 14. The annulus 20v is not secured to part 7, and the length of the latter in transverse cross section is less than the length of annulus 14 in transverse cross section. ,The opposed faces of the;parts`18, 19 are beveled, as at 22 to facilitate the positioning of part 7 upon the annulus 14.

The part 7 is beveled at-theradialinward portion of the base of channel 20, as at 21.

7hen the parts 6,'7 are seated upon the felloe 3, the portions 10 and 17 of said parts project beyond the sides of felloe`3.

The tire 4V is seated upon the parts 11, 18 and bears against the flanges 9, 16. The

`parts 12 and '19 maintain the annulus 14 in spaced relation with respect to the felloe 3.

'A set of clamping devices is employed for securing the rim upon the felloe 3. The number of clamping devices'of the set can be as desiredand by way of example the Vset consists of six. As the clamping devices are of like construction, but one will be described as the `description of one will'apply to the other. ``Each clamping device includes a headed bolt 23 eXtending through a trans- Verse opening 24 formed in the felloe 3. The shankof each bolt is of a length greater than the cross sectional length of the body of the felloe 3. 'The head of-the bolt 23 is indicated. at 25. Interposed between the head 25 and the felloe 3 is a clamping lug 26 having a bevelled end 27 which seats against the bevelled portion 15 of the outer side'part 10 of section 6. Carried by the bolt 23 is a nut 28 andialockingwasher 29. Interposed between the looking washer 29 and the felloe 3 is a clamping member formed of an'inner part 30, an outer part 31, and an intermedi- 'ate part 32. The part 30 abuts against the felloe 3. The .intermediate part 32is outwardly inclined and abuts against the inclined portion'21v at the 'outer side part of section 7. The part 31 abuts against the outer face of the outer side part 17 of section 7. The clamping lug 26 and clamping member 29 are mounted on the-bolt 23 and are maintained in clamping engagement with the sections 6, 7 respectively, by the head 25, nut 28 and washer 29. ,The arrangement of each clampingdevice is such that when the nut 28 is loosened' or removed or rather removed from the bolt 23, the washer 29 can also be removed and as well as the claniping inember, after which the section 7 can be slipped off of theannulus 14 and the tire expeditiously moved.

nterposed 'betweenthe partsll and 18 and seating upon the annulus 14 is a'rubber annulus 33. The annulus33 is employed to form a. cushion for andzto prevent the inner =tube from corroding. The inner tube is not shown.

With respect to the modified form shown in Figure 4 it relates to what is termed a clincher type rim and the annular member of U-shaped section, of either the section 6 or section 7 has eXtending therefrom a clincher 34. The annular member of U- shaped cross section is indicated at 35.

. The rim with referenceto Figure 4 would be constructed in the same inanner as that shown in Figure 2, with this exception that the clincher`l34 '-would be employed in connection with each section. The rim has a drop center effect and if necessary can change tires without taking off the rim.

lVhat I claim is A demountable sectional-tire retaining rim formed of a 'pairof oppositely'disposed, circular, spa-ced opposed like parts of channel shaped Contour' in transverse cross 'section adapted to encompass and having vtheir radially inwardly facing surfaces directly seating against a felly ofa wheel and with the openends of the channelsprovided by said parts facing each other, said parts projecting'laterally b-eyond the sides ofa felly, each of said parts having a tire retaining fiange on the-channel base and being bcveled at the radial inwardly portion of the latter-to provide for the abutting and `overlapping of the bases of the Channels by clamping'means carried by the felly'to retan the rim in position, and an annulus having one side extending into and permanently secured in one of said Channels and its other side extending into and detac'hably engagingrin the other `of said Channels, said vannulus of a'width corresponding to'the width of that of the .fellyv andfpermanently spaced from the latter by said parts.

' In testimony whereof, I aflix my signature hereto.

` noUGLAs B; h GENTRY. 

